C&D: 2018 Grand Cherokee Trackhawk First Drive: It’s Insane
Posted: Wed Aug 30, 2017 8:59 am
"...Like the Challenger SRT Demon, the Trackhawk gets a Torque Reserve function to aid launching. With launch control activated, this system cuts fuel to individual cylinders while the Jeep is brake-torqued, allowing the engine to rev higher and the supercharger to build more boost. With the function engaged, the blower generates 6.4 psi while sitting at the line. What the Trackhawk doesn’t get is any more tire than the Grand Cherokee SRT. Lift your foot off the brake and the Trackhawk will squawk all four 295/45ZR-20 Pirellis (either all-season Scorpion Verdes or more aggressive P Zeros) on its way to what Jeep claims is a 3.5-second zero-to-60-mph time. The company says the Trackhawk will burn through the quarter-mile in 11.6 seconds, but given our recent inability to match SRT’s performance claims, we suspect that figure might also be just out of reach. Give or take a few tenths, though, Club Motorsports’ 14 percent grade felt as flat as Google Maps’ 2D view (in which, incidentally, the track still shows up as dirt as of this writing—we told you it was new). Our one complaint about the engine is that we want more blower whine when the accelerator is matted. There’s a good bit under lighter loads, but at full throttle, it fades behind a raging gargle blaster of an exhaust roar so fierce it sounds like the tailpipes are emptying into the cabin...."
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